Boiler-tube cleaner.



R. W. HAMANN.

BOILBR TUBE CLEANER.

APPLICATION FILED 11:13.15, 1909.

955,871 4 Patented Apr. 26, 1910.

UNITED STATES PATENT oEEIcE.

RICHARD W. HMANN, OF ST. LOUIS, MISSOURI, ASSIGNOR TO EUGENE J. FEINER,F

ST. LOUIS, MISSOURI.

BOILER-TUBE CLEANER.

Specification of Letters Patent.

Patented Apr. 26, 1910.

' To all whom 'it may concem:

Be it known that I, RICHARD W. HAMANN, a citizen of the United States,and resident of St. Louis, Missouri, have invented certain new anduseful Improvements in Boiler- Tube Cleaners, of which the following isa specification containing a full, clear, and exact description,reference being had to the accompanying drawings, forming a part hereof.

My invention relates to boiler tube cleaners, my object being toconstruct a simple apparatus particularly intended for use in connectionwith water tube boilers, and which apparatus is utilized for directingJets of steam or compressed air onto and between the water tubes of aboiler for the purpose of removin the soot, ashes and lkel-accumulatlonsW ich interfere with the natural draft and heating capacity of theboiler. u

A -further object of my invention is to arrange tubular nozzles on theinterior of the boiler furnace Vfor the urpose of 'directing Jets ofsteam onto and) between the water tubes, -and which tubular nozzles arearranged 1n coverings of fire clay, tile, or the llke, which protectsaid tubular nozzles from theintense eat and the direct action of theflames within the furnace.

To the above purposes,- my invention'consists in certain novel featuresof construction and arrangement of parts which will be hereinafter morefully set forth, pointed out in the claims, and illustrated 1n theaccompanying drawings, in which:

Figure 1 is a side elevation, partly in section, of a boiler furnace,the same being equipped with my im roved cleaning ap aratus; Fig. 2iisan en arged vertical section taken on the line Qr-Q of Fig. l; Fig. 3 isan enlar ed detail section taken on the line 3-3 of *ig. 2; Fig. 4 is avertical section taken on the line 4 4 of Fig. 3; and Fig. 5 is aperspective view of one of the protecting members made use of incarrying out my invention. y

Referring by characters to the accolnpanying drawings:` 1 designates theboiler setting, 2 the boiler, 3 the front water leg, 4 the rear waterleg, 5 the water tubes connecting the water legs, 6 the bridge wall, 7the defiector plate located immediately over the bridge wall, and 8 thedefiector plate located. a short distance in front of the rear waterleg, all of which parts are of 'ordinary well known construction.

As shown in Fig. 1,- I locate one of the tubular nozzles A immediatelybelow the lowermost row of boiler tubes and in front of the upper end ofthe bridge wall 6, and a second tubular nozzle B is located on top ofthe uppermost row of water tubes immediately to the rear of thedeflector plate 7, while a third tubular nozzle C is located below thelowermost row of water tubes and immediately in front of the lower endvof the rear water le 4. All of these tubular nozzles are alike 1nconstruction and operation, and therefore but one will be described indetail.

Each tubular nozzle comprises a pipe or tube 9, of suflicient length toextend entirely across the space within the furnace and one end of saidtube is closed and is arranged to rock in a bearing 10 located in one ofthe side walls of the boiler setting, and the opposite end of this tubeis connected to a pipe 11, which is arranged to rock in a, bearing 12located in the opposite side Wall, and said pipe 11 being connected bya. sl1p jolnt 13 to a fluid ressure supply plpe 14, 1n which is located)a cut o'if va ve 15.

Fixed 011 the pipe 11 is a handle 11, by means of which said pipe 'andthe tubular nozzle 9 are rocked when in use. v

The pipe 9 forming the tubular nozzle is provided witii a row or rows ofperforations, such as 9, and if desired these perforations may bestaggered in order to direct the Jets of steam or compressed air indifferent direc V Vdove-tailed grooves 20 formed in the under sides ofthe tile, and after the hooks have beerr properly attached and the nutsare tightened on the ends of said hooks, the grooves 20 are filled withplastlc fire clay or like material, which hardens when dry.

The rows of protecting blocks or tile on `the lowermost pair of tubularnozzles A and. C are arranged beneath said nozzles in order to properlyprotect the same against the heat and flame passing through the furnace,whereas the blocks or tile onthe tubularnozzle B are arranged on topthereof, to protect said nozzle from the heat and flame passing over thetop of the delector plate 7.. The tops of the blocks or tile 16arecutaway on one side of the nozz1e,'as designated by 22, in order thatthe jets of steam or compressed air issuing from the apertures will `beunobstructed, and said jets can be directed over a considerable boilertube area, as shown by dotted lines in Fig. 1.

When a cleaning apparatus of my improved construction is 1n use, thevalve 15 is opened to permit the 'i'ovv of steam or compressed airthrough the supply pipe 14 and pipe 11 into the tubularl nozzle 9, andthe handle 11 is now manually engaged to lock Y the pipe 11 and tubular'nozzle 9, and during the locking motion jets of steam, or com-I pressedair issue fromthe apertures 15 and pass over and between the Water tubes5, thus blowing all soot, ashes and like accumulations from the surfacesof said tubes and causing said accumulations to be carried by thenatural and forced draft into the stack leading from the furnace.

The 'blocks or tiles 16 cover the tubular 1 nozzles 9 andyprotect thesame from the heat and -the direct action of the flame passing throughthev furnace.

-the tubularnozzles of the apparatus are thoroughly the furnace.

l claim: `1. They combination with a Water tube boiler and its setting,of a tubular nozzle transversely disposed adjacent the Watertubes of theboiler, there being jet openings protected from the heat Within formedinsaid tubular nozzle, a fluid pressure supply pipe connected to4 saidtubular nozzle, a heatY and flame protecting cover partiall inclosingthe tubularnozzle and means or rocking the nozzle. l

2. The combination with. a Water ltube boiler and' its settin ,of atubular" nozzle transversely dispose adjacent the Water tubes of theboiler, there beingjet openings vformed vin said tubular nozzlepa 'Huidpres-` sure supply pipe connected to said` tubular a heat land flameprotecting cover partiell? inclosing the tubular nozzle, and

,position on the boilertubes.

means r holding. the nozzle and cover lin 3. The combination with awater tube boiler and its settingpof a tubular nozzle transverselydisposed adjacent the 'water tubes of the boiler, there being jetopenings formed in said tubular nozzle, a fluid pressure supply pipeconnected to said tubular nozzle, avheat and flame protecting `coverpartially inclosing the tubular nozzle, and means carried by theprotecting cover and engaging the Water tubes of the boiler forsupporting said covering and nozzle.

4. The combination With a Water tube boiler and its setting, of a seriesof tubular nozzles transversely disposed 4Within the boiler settingadjacent the tubes thereof, there being jet openings formed in saidtubular nozzles, fluid pressure supply pipes connectedto said tubularnozzles, means Where-` tubes and nozzle.

5. The combination with a Water .tube l boiler and its setting, of aseries oftubular "nozzles transversely disposed Within the boilersetting adjacent the tubes thereof, there being jetopenings yformed in"said tubular nozzles, fluid pressure supply pipes connected toV saidtubular nozzles, means whereby said nozzles are independently rocked, asectional coverin of heat insulating material partially mclosing eachtubular nozzle, and means carried by the covers and engaging the boilertubes for supporting said covers and holding the same j in position onthe tubular nozzles.

6. An apparatus of the class described, comprising a tubular nozzleadapted to be positioned within a boiler setting adjacent the Watertubes of a boiler, which tubular nozzle is perforated, a fluid pressuresupply pipe connected to said tubular nozzle and a sectional heatinsulating cover for the nozzle.

7. An apparatus of the class described, comprising a tubular nozzleadapted ,to be positioned Within -a boiler setting adjacent the Watertubes of a boiler, which tubular roe nozzle is perforated, a protectingmember of ireproof material partially inclosing said tubular nozzle, a`fluid pressure supply pipe connected to said tubular nozzle and hookscarried by the 'protecting 'member for securing Vit to the Water tubes.'

@8. An apparatusl of the class described,

lcomprising a tubular nozzle adapted tobe" positioned in a boiler settinadjacent the Water tubes of a boiler, there eing` a row of perforationsformed in said'tubular nozzle,

a fluid pressure supply pipe connected to one end of the tubular nozzle,means Where- 'v bythe tubular nozzle is rocked, aprotecting covering ofieproof material partially inclosmg the tubular Ynozzle and meanscarried by the covering for attaclunent to the water y tubes.

`9,. An ,apparatus of vthe classdescribed,

comprising a tubular nozzle adapted to be enga 'ng the water tubesagainst which the positioned in a boiler setting adjacent the tubulrnozzle is positioned. water tubes of a boiler, there bein a row of Intestimony whereof, I 4'have signed my periorations formed in said tubuar nozzle, name to this specification, in presence of two 5 a fluiddpeslslure bsulpply pipe connectelil to subscribing wltnesses.

one en o t e tu u ar nozzle, means w ereby the. tubular nozzle isrocked, a. sectional RICHARD W' HAMANN protecting covering of fire roofmaterial Witnesses:l partially inclosing the tubu ar nozzle, and M. P.SMITH,

10 hooks carried by the protecting covering for E. L. WALLACE.

